Not the true. During the British period, EU patrol car equipped the Remington model 870 shotgun and not the AR 15 riffle. EU armory and all police station armory got AR 15 riffles for "attack on station" and anti-roit platoon formation purposes. Now, all EU cars get MP 5 (semi-auto) as a standard equipment.
In 2019, H&K stopped supplied any MP 5 and parts to HKPF and the SDU changed to used the SIG MPX. But I don't know whether EU car changed the MP 5 to MPX or not.